836 Carbide-tipped replacement blade for the Crain No. 835 Heavy Duty Undercut Saw. Large 6 ½" diameter allows the saw to fully undercut inside corner areas. The 40 carbide teeth produce smooth and accurate cuts. For use in undercutting wood doors, wood jambs, wood base or drywall only. Not for use on any metal, masonry, stone, or ceramic tile materials. (See the No. 805 Masonry Blade or No. 822 Diamond Blade for undercut saw blades that cut masonry or stone.) 6 pack of 836 blades.